Home / 6,278.12-9,417.24-1,661.12

Finding the Fourth Proportional to 6,278.12, 9,417.24 and 1,661.12

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Solution

The fourth proportional to 6,278.12, 9,417.24 and 1,661.12 is: 2,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.12 : 9,417.24 = 1,661.12 : x
  2. Step 2: Convert to fraction form
    6,278.12/9,417.24 = 1,661.12/x
  3. Step 3: Cross multiply
    6,278.12x = 9,417.24 × 1,661.12
  4. Step 4: Simplify right side
    6,278.12x = 15,643,165.71
  5. Step 5: Solve for x
    x = 15,643,165.71/6,278.12
  6. Step 6: Final answer
    x = 2,491.70

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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.