Home / 5,116.40-7,058.62-2,877.76

Finding the Fourth Proportional to 5,116.40, 7,058.62 and 2,877.76

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Solution

The fourth proportional to 5,116.40, 7,058.62 and 2,877.76 is: 3,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.40 : 7,058.62 = 2,877.76 : x
  2. Step 2: Convert to fraction form
    5,116.40/7,058.62 = 2,877.76/x
  3. Step 3: Cross multiply
    5,116.40x = 7,058.62 × 2,877.76
  4. Step 4: Simplify right side
    5,116.40x = 20,313,014.29
  5. Step 5: Solve for x
    x = 20,313,014.29/5,116.40
  6. Step 6: Final answer
    x = 3,970.18

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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.