Home / 1,298.70-1,947.96-567.81

Finding the Fourth Proportional to 1,298.70, 1,947.96 and 567.81

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Solution

The fourth proportional to 1,298.70, 1,947.96 and 567.81 is: 851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.70 : 1,947.96 = 567.81 : x
  2. Step 2: Convert to fraction form
    1,298.70/1,947.96 = 567.81/x
  3. Step 3: Cross multiply
    1,298.70x = 1,947.96 × 567.81
  4. Step 4: Simplify right side
    1,298.70x = 1,106,071.17
  5. Step 5: Solve for x
    x = 1,106,071.17/1,298.70
  6. Step 6: Final answer
    x = 851.68

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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.