Home / 2,587.23-3,569.23-1,988.66

Finding the Fourth Proportional to 2,587.23, 3,569.23 and 1,988.66

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Solution

The fourth proportional to 2,587.23, 3,569.23 and 1,988.66 is: 2,743.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.23 : 3,569.23 = 1,988.66 : x
  2. Step 2: Convert to fraction form
    2,587.23/3,569.23 = 1,988.66/x
  3. Step 3: Cross multiply
    2,587.23x = 3,569.23 × 1,988.66
  4. Step 4: Simplify right side
    2,587.23x = 7,097,962.11
  5. Step 5: Solve for x
    x = 7,097,962.11/2,587.23
  6. Step 6: Final answer
    x = 2,743.46

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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.