Home / 1,430.60-1,972.67-1,098.32

Finding the Fourth Proportional to 1,430.60, 1,972.67 and 1,098.32

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Solution

The fourth proportional to 1,430.60, 1,972.67 and 1,098.32 is: 1,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.60 : 1,972.67 = 1,098.32 : x
  2. Step 2: Convert to fraction form
    1,430.60/1,972.67 = 1,098.32/x
  3. Step 3: Cross multiply
    1,430.60x = 1,972.67 × 1,098.32
  4. Step 4: Simplify right side
    1,430.60x = 2,166,607.56
  5. Step 5: Solve for x
    x = 2,166,607.56/1,430.60
  6. Step 6: Final answer
    x = 1,514.48

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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.