Home / 1,655.69-2,478.67-1,306.58

Finding the Fourth Proportional to 1,655.69, 2,478.67 and 1,306.58

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Solution

The fourth proportional to 1,655.69, 2,478.67 and 1,306.58 is: 1,956.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.69 : 2,478.67 = 1,306.58 : x
  2. Step 2: Convert to fraction form
    1,655.69/2,478.67 = 1,306.58/x
  3. Step 3: Cross multiply
    1,655.69x = 2,478.67 × 1,306.58
  4. Step 4: Simplify right side
    1,655.69x = 3,238,580.65
  5. Step 5: Solve for x
    x = 3,238,580.65/1,655.69
  6. Step 6: Final answer
    x = 1,956.03

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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.