Home / 2,400.30-3,312.90-2,175.12

Finding the Fourth Proportional to 2,400.30, 3,312.90 and 2,175.12

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Solution

The fourth proportional to 2,400.30, 3,312.90 and 2,175.12 is: 3,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.30 : 3,312.90 = 2,175.12 : x
  2. Step 2: Convert to fraction form
    2,400.30/3,312.90 = 2,175.12/x
  3. Step 3: Cross multiply
    2,400.30x = 3,312.90 × 2,175.12
  4. Step 4: Simplify right side
    2,400.30x = 7,205,955.05
  5. Step 5: Solve for x
    x = 7,205,955.05/2,400.30
  6. Step 6: Final answer
    x = 3,002.11

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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.