Home / 1,130.16-1,693.34-1,087.50

Finding the Fourth Proportional to 1,130.16, 1,693.34 and 1,087.50

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Solution

The fourth proportional to 1,130.16, 1,693.34 and 1,087.50 is: 1,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.16 : 1,693.34 = 1,087.50 : x
  2. Step 2: Convert to fraction form
    1,130.16/1,693.34 = 1,087.50/x
  3. Step 3: Cross multiply
    1,130.16x = 1,693.34 × 1,087.50
  4. Step 4: Simplify right side
    1,130.16x = 1,841,507.25
  5. Step 5: Solve for x
    x = 1,841,507.25/1,130.16
  6. Step 6: Final answer
    x = 1,629.42

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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.