Home / 3,115.32-4,647.45-3,030.57

Finding the Fourth Proportional to 3,115.32, 4,647.45 and 3,030.57

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Solution

The fourth proportional to 3,115.32, 4,647.45 and 3,030.57 is: 4,521.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.32 : 4,647.45 = 3,030.57 : x
  2. Step 2: Convert to fraction form
    3,115.32/4,647.45 = 3,030.57/x
  3. Step 3: Cross multiply
    3,115.32x = 4,647.45 × 3,030.57
  4. Step 4: Simplify right side
    3,115.32x = 14,084,422.55
  5. Step 5: Solve for x
    x = 14,084,422.55/3,115.32
  6. Step 6: Final answer
    x = 4,521.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.