Home / 1,475.84-2,215.08-1,319.42

Finding the Fourth Proportional to 1,475.84, 2,215.08 and 1,319.42

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Solution

The fourth proportional to 1,475.84, 2,215.08 and 1,319.42 is: 1,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.84 : 2,215.08 = 1,319.42 : x
  2. Step 2: Convert to fraction form
    1,475.84/2,215.08 = 1,319.42/x
  3. Step 3: Cross multiply
    1,475.84x = 2,215.08 × 1,319.42
  4. Step 4: Simplify right side
    1,475.84x = 2,922,626.39
  5. Step 5: Solve for x
    x = 2,922,626.39/1,475.84
  6. Step 6: Final answer
    x = 1,980.31

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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.