Home / 2,374.08-3,560.64-1,988.16

Finding the Fourth Proportional to 2,374.08, 3,560.64 and 1,988.16

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Solution

The fourth proportional to 2,374.08, 3,560.64 and 1,988.16 is: 2,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.08 : 3,560.64 = 1,988.16 : x
  2. Step 2: Convert to fraction form
    2,374.08/3,560.64 = 1,988.16/x
  3. Step 3: Cross multiply
    2,374.08x = 3,560.64 × 1,988.16
  4. Step 4: Simplify right side
    2,374.08x = 7,079,122.02
  5. Step 5: Solve for x
    x = 7,079,122.02/2,374.08
  6. Step 6: Final answer
    x = 2,981.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.