Home / 3,119.04-4,678.76-1,269.15

Finding the Fourth Proportional to 3,119.04, 4,678.76 and 1,269.15

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Solution

The fourth proportional to 3,119.04, 4,678.76 and 1,269.15 is: 1,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.04 : 4,678.76 = 1,269.15 : x
  2. Step 2: Convert to fraction form
    3,119.04/4,678.76 = 1,269.15/x
  3. Step 3: Cross multiply
    3,119.04x = 4,678.76 × 1,269.15
  4. Step 4: Simplify right side
    3,119.04x = 5,938,024.86
  5. Step 5: Solve for x
    x = 5,938,024.86/3,119.04
  6. Step 6: Final answer
    x = 1,903.80

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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.