Home / 1,521.42-2,282.34-1,430.28

Finding the Fourth Proportional to 1,521.42, 2,282.34 and 1,430.28

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Solution

The fourth proportional to 1,521.42, 2,282.34 and 1,430.28 is: 2,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.42 : 2,282.34 = 1,430.28 : x
  2. Step 2: Convert to fraction form
    1,521.42/2,282.34 = 1,430.28/x
  3. Step 3: Cross multiply
    1,521.42x = 2,282.34 × 1,430.28
  4. Step 4: Simplify right side
    1,521.42x = 3,264,385.26
  5. Step 5: Solve for x
    x = 3,264,385.26/1,521.42
  6. Step 6: Final answer
    x = 2,145.62

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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.