Home / 2,829.18-3,904.29-1,587.18

Finding the Fourth Proportional to 2,829.18, 3,904.29 and 1,587.18

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Solution

The fourth proportional to 2,829.18, 3,904.29 and 1,587.18 is: 2,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.18 : 3,904.29 = 1,587.18 : x
  2. Step 2: Convert to fraction form
    2,829.18/3,904.29 = 1,587.18/x
  3. Step 3: Cross multiply
    2,829.18x = 3,904.29 × 1,587.18
  4. Step 4: Simplify right side
    2,829.18x = 6,196,811.00
  5. Step 5: Solve for x
    x = 6,196,811.00/2,829.18
  6. Step 6: Final answer
    x = 2,190.32

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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.