Home / 1,489.55-2,055.67-1,017.53

Finding the Fourth Proportional to 1,489.55, 2,055.67 and 1,017.53

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Solution

The fourth proportional to 1,489.55, 2,055.67 and 1,017.53 is: 1,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.55 : 2,055.67 = 1,017.53 : x
  2. Step 2: Convert to fraction form
    1,489.55/2,055.67 = 1,017.53/x
  3. Step 3: Cross multiply
    1,489.55x = 2,055.67 × 1,017.53
  4. Step 4: Simplify right side
    1,489.55x = 2,091,693.07
  5. Step 5: Solve for x
    x = 2,091,693.07/1,489.55
  6. Step 6: Final answer
    x = 1,404.24

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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.