Home / 2,487.08-3,432.25-1,368.07

Finding the Fourth Proportional to 2,487.08, 3,432.25 and 1,368.07

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Solution

The fourth proportional to 2,487.08, 3,432.25 and 1,368.07 is: 1,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.08 : 3,432.25 = 1,368.07 : x
  2. Step 2: Convert to fraction form
    2,487.08/3,432.25 = 1,368.07/x
  3. Step 3: Cross multiply
    2,487.08x = 3,432.25 × 1,368.07
  4. Step 4: Simplify right side
    2,487.08x = 4,695,558.26
  5. Step 5: Solve for x
    x = 4,695,558.26/2,487.08
  6. Step 6: Final answer
    x = 1,887.98

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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.