Home / 5,421.76-7,482.04-2,937.76

Finding the Fourth Proportional to 5,421.76, 7,482.04 and 2,937.76

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Solution

The fourth proportional to 5,421.76, 7,482.04 and 2,937.76 is: 4,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.76 : 7,482.04 = 2,937.76 : x
  2. Step 2: Convert to fraction form
    5,421.76/7,482.04 = 2,937.76/x
  3. Step 3: Cross multiply
    5,421.76x = 7,482.04 × 2,937.76
  4. Step 4: Simplify right side
    5,421.76x = 21,980,437.83
  5. Step 5: Solve for x
    x = 21,980,437.83/5,421.76
  6. Step 6: Final answer
    x = 4,054.11

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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.