Home / 3,001.40-4,141.95-1,675.20

Finding the Fourth Proportional to 3,001.40, 4,141.95 and 1,675.20

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Solution

The fourth proportional to 3,001.40, 4,141.95 and 1,675.20 is: 2,311.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.40 : 4,141.95 = 1,675.20 : x
  2. Step 2: Convert to fraction form
    3,001.40/4,141.95 = 1,675.20/x
  3. Step 3: Cross multiply
    3,001.40x = 4,141.95 × 1,675.20
  4. Step 4: Simplify right side
    3,001.40x = 6,938,590.01
  5. Step 5: Solve for x
    x = 6,938,590.01/3,001.40
  6. Step 6: Final answer
    x = 2,311.78

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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.