Home / 1,784.64-2,463.03-1,121.52

Finding the Fourth Proportional to 1,784.64, 2,463.03 and 1,121.52

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Solution

The fourth proportional to 1,784.64, 2,463.03 and 1,121.52 is: 1,547.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.64 : 2,463.03 = 1,121.52 : x
  2. Step 2: Convert to fraction form
    1,784.64/2,463.03 = 1,121.52/x
  3. Step 3: Cross multiply
    1,784.64x = 2,463.03 × 1,121.52
  4. Step 4: Simplify right side
    1,784.64x = 2,762,337.41
  5. Step 5: Solve for x
    x = 2,762,337.41/1,784.64
  6. Step 6: Final answer
    x = 1,547.84

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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.