Home / 7,550.78-11,328.12-2,870.87

Finding the Fourth Proportional to 7,550.78, 11,328.12 and 2,870.87

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Solution

The fourth proportional to 7,550.78, 11,328.12 and 2,870.87 is: 4,307.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,550.78 : 11,328.12 = 2,870.87 : x
  2. Step 2: Convert to fraction form
    7,550.78/11,328.12 = 2,870.87/x
  3. Step 3: Cross multiply
    7,550.78x = 11,328.12 × 2,870.87
  4. Step 4: Simplify right side
    7,550.78x = 32,521,503.22
  5. Step 5: Solve for x
    x = 32,521,503.22/7,550.78
  6. Step 6: Final answer
    x = 4,307.04

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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.