Home / 5,421.75-7,482.02-2,937.75

Finding the Fourth Proportional to 5,421.75, 7,482.02 and 2,937.75

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Solution

The fourth proportional to 5,421.75, 7,482.02 and 2,937.75 is: 4,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.75 : 7,482.02 = 2,937.75 : x
  2. Step 2: Convert to fraction form
    5,421.75/7,482.02 = 2,937.75/x
  3. Step 3: Cross multiply
    5,421.75x = 7,482.02 × 2,937.75
  4. Step 4: Simplify right side
    5,421.75x = 21,980,304.26
  5. Step 5: Solve for x
    x = 21,980,304.26/5,421.75
  6. Step 6: Final answer
    x = 4,054.10

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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.