Home / 4,159.93-6,240.61-1,387.30

Finding the Fourth Proportional to 4,159.93, 6,240.61 and 1,387.30

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Solution

The fourth proportional to 4,159.93, 6,240.61 and 1,387.30 is: 2,081.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.93 : 6,240.61 = 1,387.30 : x
  2. Step 2: Convert to fraction form
    4,159.93/6,240.61 = 1,387.30/x
  3. Step 3: Cross multiply
    4,159.93x = 6,240.61 × 1,387.30
  4. Step 4: Simplify right side
    4,159.93x = 8,657,598.25
  5. Step 5: Solve for x
    x = 8,657,598.25/4,159.93
  6. Step 6: Final answer
    x = 2,081.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.