Home / 4,387.32-6,056.16-2,978.30

Finding the Fourth Proportional to 4,387.32, 6,056.16 and 2,978.30

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Solution

The fourth proportional to 4,387.32, 6,056.16 and 2,978.30 is: 4,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387.32 : 6,056.16 = 2,978.30 : x
  2. Step 2: Convert to fraction form
    4,387.32/6,056.16 = 2,978.30/x
  3. Step 3: Cross multiply
    4,387.32x = 6,056.16 × 2,978.30
  4. Step 4: Simplify right side
    4,387.32x = 18,037,073.68
  5. Step 5: Solve for x
    x = 18,037,073.68/4,387.32
  6. Step 6: Final answer
    x = 4,111.18

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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.