Home / 4,578.18-6,868.32-1,291.20

Finding the Fourth Proportional to 4,578.18, 6,868.32 and 1,291.20

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Solution

The fourth proportional to 4,578.18, 6,868.32 and 1,291.20 is: 1,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.18 : 6,868.32 = 1,291.20 : x
  2. Step 2: Convert to fraction form
    4,578.18/6,868.32 = 1,291.20/x
  3. Step 3: Cross multiply
    4,578.18x = 6,868.32 × 1,291.20
  4. Step 4: Simplify right side
    4,578.18x = 8,868,374.78
  5. Step 5: Solve for x
    x = 8,868,374.78/4,578.18
  6. Step 6: Final answer
    x = 1,937.10

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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.