Home / 6,631.15-9,148.68-4,242.51

Finding the Fourth Proportional to 6,631.15, 9,148.68 and 4,242.51

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Solution

The fourth proportional to 6,631.15, 9,148.68 and 4,242.51 is: 5,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.15 : 9,148.68 = 4,242.51 : x
  2. Step 2: Convert to fraction form
    6,631.15/9,148.68 = 4,242.51/x
  3. Step 3: Cross multiply
    6,631.15x = 9,148.68 × 4,242.51
  4. Step 4: Simplify right side
    6,631.15x = 38,813,422.88
  5. Step 5: Solve for x
    x = 38,813,422.88/6,631.15
  6. Step 6: Final answer
    x = 5,853.20

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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.