Home / 2,430.71-3,354.37-1,382.77

Finding the Fourth Proportional to 2,430.71, 3,354.37 and 1,382.77

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Solution

The fourth proportional to 2,430.71, 3,354.37 and 1,382.77 is: 1,908.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.71 : 3,354.37 = 1,382.77 : x
  2. Step 2: Convert to fraction form
    2,430.71/3,354.37 = 1,382.77/x
  3. Step 3: Cross multiply
    2,430.71x = 3,354.37 × 1,382.77
  4. Step 4: Simplify right side
    2,430.71x = 4,638,310.36
  5. Step 5: Solve for x
    x = 4,638,310.36/2,430.71
  6. Step 6: Final answer
    x = 1,908.22

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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.