Home / 3,148.89-4,345.45-1,732.60

Finding the Fourth Proportional to 3,148.89, 4,345.45 and 1,732.60

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Solution

The fourth proportional to 3,148.89, 4,345.45 and 1,732.60 is: 2,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.89 : 4,345.45 = 1,732.60 : x
  2. Step 2: Convert to fraction form
    3,148.89/4,345.45 = 1,732.60/x
  3. Step 3: Cross multiply
    3,148.89x = 4,345.45 × 1,732.60
  4. Step 4: Simplify right side
    3,148.89x = 7,528,926.67
  5. Step 5: Solve for x
    x = 7,528,926.67/3,148.89
  6. Step 6: Final answer
    x = 2,390.98

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1.5x scale

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.