Home / 7,449.40-10,279.18-4,617.40

Finding the Fourth Proportional to 7,449.40, 10,279.18 and 4,617.40

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Solution

The fourth proportional to 7,449.40, 10,279.18 and 4,617.40 is: 6,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.40 : 10,279.18 = 4,617.40 : x
  2. Step 2: Convert to fraction form
    7,449.40/10,279.18 = 4,617.40/x
  3. Step 3: Cross multiply
    7,449.40x = 10,279.18 × 4,617.40
  4. Step 4: Simplify right side
    7,449.40x = 47,463,085.73
  5. Step 5: Solve for x
    x = 47,463,085.73/7,449.40
  6. Step 6: Final answer
    x = 6,371.40

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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.