Home / 3,148.05-4,722.61-1,298.15

Finding the Fourth Proportional to 3,148.05, 4,722.61 and 1,298.15

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Solution

The fourth proportional to 3,148.05, 4,722.61 and 1,298.15 is: 1,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.05 : 4,722.61 = 1,298.15 : x
  2. Step 2: Convert to fraction form
    3,148.05/4,722.61 = 1,298.15/x
  3. Step 3: Cross multiply
    3,148.05x = 4,722.61 × 1,298.15
  4. Step 4: Simplify right side
    3,148.05x = 6,130,663.65
  5. Step 5: Solve for x
    x = 6,130,663.65/3,148.05
  6. Step 6: Final answer
    x = 1,947.45

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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.