Home / 3,340.30-5,010.75-875.08

Finding the Fourth Proportional to 3,340.30, 5,010.75 and 875.08

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Solution

The fourth proportional to 3,340.30, 5,010.75 and 875.08 is: 1,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.30 : 5,010.75 = 875.08 : x
  2. Step 2: Convert to fraction form
    3,340.30/5,010.75 = 875.08/x
  3. Step 3: Cross multiply
    3,340.30x = 5,010.75 × 875.08
  4. Step 4: Simplify right side
    3,340.30x = 4,384,807.11
  5. Step 5: Solve for x
    x = 4,384,807.11/3,340.30
  6. Step 6: Final answer
    x = 1,312.70

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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.