Home / 3,148.75-4,345.28-1,751.47

Finding the Fourth Proportional to 3,148.75, 4,345.28 and 1,751.47

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Solution

The fourth proportional to 3,148.75, 4,345.28 and 1,751.47 is: 2,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.75 : 4,345.28 = 1,751.47 : x
  2. Step 2: Convert to fraction form
    3,148.75/4,345.28 = 1,751.47/x
  3. Step 3: Cross multiply
    3,148.75x = 4,345.28 × 1,751.47
  4. Step 4: Simplify right side
    3,148.75x = 7,610,627.56
  5. Step 5: Solve for x
    x = 7,610,627.56/3,148.75
  6. Step 6: Final answer
    x = 2,417.03

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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.