Home / 1,451.16-2,176.86-477.03

Finding the Fourth Proportional to 1,451.16, 2,176.86 and 477.03

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Solution

The fourth proportional to 1,451.16, 2,176.86 and 477.03 is: 715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.16 : 2,176.86 = 477.03 : x
  2. Step 2: Convert to fraction form
    1,451.16/2,176.86 = 477.03/x
  3. Step 3: Cross multiply
    1,451.16x = 2,176.86 × 477.03
  4. Step 4: Simplify right side
    1,451.16x = 1,038,427.53
  5. Step 5: Solve for x
    x = 1,038,427.53/1,451.16
  6. Step 6: Final answer
    x = 715.58

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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.