Home / 4,213.17-6,319.56-1,291.50

Finding the Fourth Proportional to 4,213.17, 6,319.56 and 1,291.50

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Solution

The fourth proportional to 4,213.17, 6,319.56 and 1,291.50 is: 1,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.17 : 6,319.56 = 1,291.50 : x
  2. Step 2: Convert to fraction form
    4,213.17/6,319.56 = 1,291.50/x
  3. Step 3: Cross multiply
    4,213.17x = 6,319.56 × 1,291.50
  4. Step 4: Simplify right side
    4,213.17x = 8,161,711.74
  5. Step 5: Solve for x
    x = 8,161,711.74/4,213.17
  6. Step 6: Final answer
    x = 1,937.19

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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.