Home / 3,130.66-4,698.31-2,521.72

Finding the Fourth Proportional to 3,130.66, 4,698.31 and 2,521.72

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Solution

The fourth proportional to 3,130.66, 4,698.31 and 2,521.72 is: 3,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.66 : 4,698.31 = 2,521.72 : x
  2. Step 2: Convert to fraction form
    3,130.66/4,698.31 = 2,521.72/x
  3. Step 3: Cross multiply
    3,130.66x = 4,698.31 × 2,521.72
  4. Step 4: Simplify right side
    3,130.66x = 11,847,822.29
  5. Step 5: Solve for x
    x = 11,847,822.29/3,130.66
  6. Step 6: Final answer
    x = 3,784.45

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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.