Home / 1,310.17-1,808.02-975.57

Finding the Fourth Proportional to 1,310.17, 1,808.02 and 975.57

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Solution

The fourth proportional to 1,310.17, 1,808.02 and 975.57 is: 1,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310.17 : 1,808.02 = 975.57 : x
  2. Step 2: Convert to fraction form
    1,310.17/1,808.02 = 975.57/x
  3. Step 3: Cross multiply
    1,310.17x = 1,808.02 × 975.57
  4. Step 4: Simplify right side
    1,310.17x = 1,763,839.57
  5. Step 5: Solve for x
    x = 1,763,839.57/1,310.17
  6. Step 6: Final answer
    x = 1,346.27

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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.