Home / 1,487.83-2,048.52-1,263.32

Finding the Fourth Proportional to 1,487.83, 2,048.52 and 1,263.32

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Solution

The fourth proportional to 1,487.83, 2,048.52 and 1,263.32 is: 1,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.83 : 2,048.52 = 1,263.32 : x
  2. Step 2: Convert to fraction form
    1,487.83/2,048.52 = 1,263.32/x
  3. Step 3: Cross multiply
    1,487.83x = 2,048.52 × 1,263.32
  4. Step 4: Simplify right side
    1,487.83x = 2,587,938.90
  5. Step 5: Solve for x
    x = 2,587,938.90/1,487.83
  6. Step 6: Final answer
    x = 1,739.40

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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.