Home / 2,587.16-3,570.36-1,408.16

Finding the Fourth Proportional to 2,587.16, 3,570.36 and 1,408.16

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Solution

The fourth proportional to 2,587.16, 3,570.36 and 1,408.16 is: 1,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.16 : 3,570.36 = 1,408.16 : x
  2. Step 2: Convert to fraction form
    2,587.16/3,570.36 = 1,408.16/x
  3. Step 3: Cross multiply
    2,587.16x = 3,570.36 × 1,408.16
  4. Step 4: Simplify right side
    2,587.16x = 5,027,638.14
  5. Step 5: Solve for x
    x = 5,027,638.14/2,587.16
  6. Step 6: Final answer
    x = 1,943.30

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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.