Home / 2,301.85-3,175.54-1,555.53

Finding the Fourth Proportional to 2,301.85, 3,175.54 and 1,555.53

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Solution

The fourth proportional to 2,301.85, 3,175.54 and 1,555.53 is: 2,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.85 : 3,175.54 = 1,555.53 : x
  2. Step 2: Convert to fraction form
    2,301.85/3,175.54 = 1,555.53/x
  3. Step 3: Cross multiply
    2,301.85x = 3,175.54 × 1,555.53
  4. Step 4: Simplify right side
    2,301.85x = 4,939,639.96
  5. Step 5: Solve for x
    x = 4,939,639.96/2,301.85
  6. Step 6: Final answer
    x = 2,145.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.