Home / 3,148.36-4,718.70-1,298.92

Finding the Fourth Proportional to 3,148.36, 4,718.70 and 1,298.92

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Solution

The fourth proportional to 3,148.36, 4,718.70 and 1,298.92 is: 1,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.36 : 4,718.70 = 1,298.92 : x
  2. Step 2: Convert to fraction form
    3,148.36/4,718.70 = 1,298.92/x
  3. Step 3: Cross multiply
    3,148.36x = 4,718.70 × 1,298.92
  4. Step 4: Simplify right side
    3,148.36x = 6,129,213.80
  5. Step 5: Solve for x
    x = 6,129,213.80/3,148.36
  6. Step 6: Final answer
    x = 1,946.80

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1.5x scale

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.