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Finding the Fourth Proportional to 1,130.13, 1,696.95 and 700.02

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Solution

The fourth proportional to 1,130.13, 1,696.95 and 700.02 is: 1,051.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.13 : 1,696.95 = 700.02 : x
  2. Step 2: Convert to fraction form
    1,130.13/1,696.95 = 700.02/x
  3. Step 3: Cross multiply
    1,130.13x = 1,696.95 × 700.02
  4. Step 4: Simplify right side
    1,130.13x = 1,187,898.94
  5. Step 5: Solve for x
    x = 1,187,898.94/1,130.13
  6. Step 6: Final answer
    x = 1,051.12

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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.