Home / 5,328.40-7,352.92-2,970.08

Finding the Fourth Proportional to 5,328.40, 7,352.92 and 2,970.08

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Solution

The fourth proportional to 5,328.40, 7,352.92 and 2,970.08 is: 4,098.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.40 : 7,352.92 = 2,970.08 : x
  2. Step 2: Convert to fraction form
    5,328.40/7,352.92 = 2,970.08/x
  3. Step 3: Cross multiply
    5,328.40x = 7,352.92 × 2,970.08
  4. Step 4: Simplify right side
    5,328.40x = 21,838,771.59
  5. Step 5: Solve for x
    x = 21,838,771.59/5,328.40
  6. Step 6: Final answer
    x = 4,098.56

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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.