Home / 3,124.14-4,309.74-1,864.80

Finding the Fourth Proportional to 3,124.14, 4,309.74 and 1,864.80

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Solution

The fourth proportional to 3,124.14, 4,309.74 and 1,864.80 is: 2,572.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.14 : 4,309.74 = 1,864.80 : x
  2. Step 2: Convert to fraction form
    3,124.14/4,309.74 = 1,864.80/x
  3. Step 3: Cross multiply
    3,124.14x = 4,309.74 × 1,864.80
  4. Step 4: Simplify right side
    3,124.14x = 8,036,803.15
  5. Step 5: Solve for x
    x = 8,036,803.15/3,124.14
  6. Step 6: Final answer
    x = 2,572.48

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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.