Home / 7,258.80-10,017.12-4,115.52

Finding the Fourth Proportional to 7,258.80, 10,017.12 and 4,115.52

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Solution

The fourth proportional to 7,258.80, 10,017.12 and 4,115.52 is: 5,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258.80 : 10,017.12 = 4,115.52 : x
  2. Step 2: Convert to fraction form
    7,258.80/10,017.12 = 4,115.52/x
  3. Step 3: Cross multiply
    7,258.80x = 10,017.12 × 4,115.52
  4. Step 4: Simplify right side
    7,258.80x = 41,225,657.70
  5. Step 5: Solve for x
    x = 41,225,657.70/7,258.80
  6. Step 6: Final answer
    x = 5,679.40

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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.