Home / 2,116.11-2,913.41-1,816.76

Finding the Fourth Proportional to 2,116.11, 2,913.41 and 1,816.76

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Solution

The fourth proportional to 2,116.11, 2,913.41 and 1,816.76 is: 2,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.11 : 2,913.41 = 1,816.76 : x
  2. Step 2: Convert to fraction form
    2,116.11/2,913.41 = 1,816.76/x
  3. Step 3: Cross multiply
    2,116.11x = 2,913.41 × 1,816.76
  4. Step 4: Simplify right side
    2,116.11x = 5,292,980.63
  5. Step 5: Solve for x
    x = 5,292,980.63/2,116.11
  6. Step 6: Final answer
    x = 2,501.28

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Find fourth proportional to 1,058.06, 1,456.71 and 908.38
Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.