Home / 2,587.64-3,570.86-1,408.68

Finding the Fourth Proportional to 2,587.64, 3,570.86 and 1,408.68

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Solution

The fourth proportional to 2,587.64, 3,570.86 and 1,408.68 is: 1,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.64 : 3,570.86 = 1,408.68 : x
  2. Step 2: Convert to fraction form
    2,587.64/3,570.86 = 1,408.68/x
  3. Step 3: Cross multiply
    2,587.64x = 3,570.86 × 1,408.68
  4. Step 4: Simplify right side
    2,587.64x = 5,030,192.02
  5. Step 5: Solve for x
    x = 5,030,192.02/2,587.64
  6. Step 6: Final answer
    x = 1,943.93

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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.