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Finding the Fourth Proportional to 1,023.65, 1,535.51 and 970.34

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Solution

The fourth proportional to 1,023.65, 1,535.51 and 970.34 is: 1,455.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.65 : 1,535.51 = 970.34 : x
  2. Step 2: Convert to fraction form
    1,023.65/1,535.51 = 970.34/x
  3. Step 3: Cross multiply
    1,023.65x = 1,535.51 × 970.34
  4. Step 4: Simplify right side
    1,023.65x = 1,489,966.77
  5. Step 5: Solve for x
    x = 1,489,966.77/1,023.65
  6. Step 6: Final answer
    x = 1,455.54

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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.