Home / 5,312.40-7,329.20-3,653.52

Finding the Fourth Proportional to 5,312.40, 7,329.20 and 3,653.52

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Solution

The fourth proportional to 5,312.40, 7,329.20 and 3,653.52 is: 5,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.40 : 7,329.20 = 3,653.52 : x
  2. Step 2: Convert to fraction form
    5,312.40/7,329.20 = 3,653.52/x
  3. Step 3: Cross multiply
    5,312.40x = 7,329.20 × 3,653.52
  4. Step 4: Simplify right side
    5,312.40x = 26,777,378.78
  5. Step 5: Solve for x
    x = 26,777,378.78/5,312.40
  6. Step 6: Final answer
    x = 5,040.54

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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.