Home / 3,124.48-4,685.28-1,480

Finding the Fourth Proportional to 3,124.48, 4,685.28 and 1,480

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Solution

The fourth proportional to 3,124.48, 4,685.28 and 1,480 is: 2,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.48 : 4,685.28 = 1,480 : x
  2. Step 2: Convert to fraction form
    3,124.48/4,685.28 = 1,480/x
  3. Step 3: Cross multiply
    3,124.48x = 4,685.28 × 1,480
  4. Step 4: Simplify right side
    3,124.48x = 6,934,214.40
  5. Step 5: Solve for x
    x = 6,934,214.40/3,124.48
  6. Step 6: Final answer
    x = 2,219.32

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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.