Home / 3,130.14-4,665.09-3,125.28

Finding the Fourth Proportional to 3,130.14, 4,665.09 and 3,125.28

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Solution

The fourth proportional to 3,130.14, 4,665.09 and 3,125.28 is: 4,657.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.14 : 4,665.09 = 3,125.28 : x
  2. Step 2: Convert to fraction form
    3,130.14/4,665.09 = 3,125.28/x
  3. Step 3: Cross multiply
    3,130.14x = 4,665.09 × 3,125.28
  4. Step 4: Simplify right side
    3,130.14x = 14,579,712.48
  5. Step 5: Solve for x
    x = 14,579,712.48/3,130.14
  6. Step 6: Final answer
    x = 4,657.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.