Home / 5,320.40-7,340.80-2,962.08

Finding the Fourth Proportional to 5,320.40, 7,340.80 and 2,962.08

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Solution

The fourth proportional to 5,320.40, 7,340.80 and 2,962.08 is: 4,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.40 : 7,340.80 = 2,962.08 : x
  2. Step 2: Convert to fraction form
    5,320.40/7,340.80 = 2,962.08/x
  3. Step 3: Cross multiply
    5,320.40x = 7,340.80 × 2,962.08
  4. Step 4: Simplify right side
    5,320.40x = 21,744,036.86
  5. Step 5: Solve for x
    x = 21,744,036.86/5,320.40
  6. Step 6: Final answer
    x = 4,086.92

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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.