Home / 5,347.21-7,378.85-2,957.04

Finding the Fourth Proportional to 5,347.21, 7,378.85 and 2,957.04

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Solution

The fourth proportional to 5,347.21, 7,378.85 and 2,957.04 is: 4,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.21 : 7,378.85 = 2,957.04 : x
  2. Step 2: Convert to fraction form
    5,347.21/7,378.85 = 2,957.04/x
  3. Step 3: Cross multiply
    5,347.21x = 7,378.85 × 2,957.04
  4. Step 4: Simplify right side
    5,347.21x = 21,819,554.60
  5. Step 5: Solve for x
    x = 21,819,554.60/5,347.21
  6. Step 6: Final answer
    x = 4,080.55

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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.