Home / 2,587.98-3,568.14-2,115.36

Finding the Fourth Proportional to 2,587.98, 3,568.14 and 2,115.36

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Solution

The fourth proportional to 2,587.98, 3,568.14 and 2,115.36 is: 2,916.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.98 : 3,568.14 = 2,115.36 : x
  2. Step 2: Convert to fraction form
    2,587.98/3,568.14 = 2,115.36/x
  3. Step 3: Cross multiply
    2,587.98x = 3,568.14 × 2,115.36
  4. Step 4: Simplify right side
    2,587.98x = 7,547,900.63
  5. Step 5: Solve for x
    x = 7,547,900.63/2,587.98
  6. Step 6: Final answer
    x = 2,916.52

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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.