Home / 5,425.74-8,139.06-1,530.18

Finding the Fourth Proportional to 5,425.74, 8,139.06 and 1,530.18

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Solution

The fourth proportional to 5,425.74, 8,139.06 and 1,530.18 is: 2,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.74 : 8,139.06 = 1,530.18 : x
  2. Step 2: Convert to fraction form
    5,425.74/8,139.06 = 1,530.18/x
  3. Step 3: Cross multiply
    5,425.74x = 8,139.06 × 1,530.18
  4. Step 4: Simplify right side
    5,425.74x = 12,454,226.83
  5. Step 5: Solve for x
    x = 12,454,226.83/5,425.74
  6. Step 6: Final answer
    x = 2,295.40

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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.