Home / 3,155.09-4,730.02-1,307.52

Finding the Fourth Proportional to 3,155.09, 4,730.02 and 1,307.52

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Solution

The fourth proportional to 3,155.09, 4,730.02 and 1,307.52 is: 1,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.09 : 4,730.02 = 1,307.52 : x
  2. Step 2: Convert to fraction form
    3,155.09/4,730.02 = 1,307.52/x
  3. Step 3: Cross multiply
    3,155.09x = 4,730.02 × 1,307.52
  4. Step 4: Simplify right side
    3,155.09x = 6,184,592.48
  5. Step 5: Solve for x
    x = 6,184,592.48/3,155.09
  6. Step 6: Final answer
    x = 1,960.20

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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.