Home / 7,578.90-10,458.18-4,391.55

Finding the Fourth Proportional to 7,578.90, 10,458.18 and 4,391.55

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Solution

The fourth proportional to 7,578.90, 10,458.18 and 4,391.55 is: 6,059.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.90 : 10,458.18 = 4,391.55 : x
  2. Step 2: Convert to fraction form
    7,578.90/10,458.18 = 4,391.55/x
  3. Step 3: Cross multiply
    7,578.90x = 10,458.18 × 4,391.55
  4. Step 4: Simplify right side
    7,578.90x = 45,927,620.38
  5. Step 5: Solve for x
    x = 45,927,620.38/7,578.90
  6. Step 6: Final answer
    x = 6,059.93

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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.