Home / 4,127.04-5,705.90-3,130.74

Finding the Fourth Proportional to 4,127.04, 5,705.90 and 3,130.74

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Solution

The fourth proportional to 4,127.04, 5,705.90 and 3,130.74 is: 4,328.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.04 : 5,705.90 = 3,130.74 : x
  2. Step 2: Convert to fraction form
    4,127.04/5,705.90 = 3,130.74/x
  3. Step 3: Cross multiply
    4,127.04x = 5,705.90 × 3,130.74
  4. Step 4: Simplify right side
    4,127.04x = 17,863,673.71
  5. Step 5: Solve for x
    x = 17,863,673.71/4,127.04
  6. Step 6: Final answer
    x = 4,328.45

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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.