Home / 1,299.17-1,932.05-1,258.16

Finding the Fourth Proportional to 1,299.17, 1,932.05 and 1,258.16

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Solution

The fourth proportional to 1,299.17, 1,932.05 and 1,258.16 is: 1,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.17 : 1,932.05 = 1,258.16 : x
  2. Step 2: Convert to fraction form
    1,299.17/1,932.05 = 1,258.16/x
  3. Step 3: Cross multiply
    1,299.17x = 1,932.05 × 1,258.16
  4. Step 4: Simplify right side
    1,299.17x = 2,430,821.51
  5. Step 5: Solve for x
    x = 2,430,821.51/1,299.17
  6. Step 6: Final answer
    x = 1,871.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.