Home / 2,864.15-3,953.47-1,745.13

Finding the Fourth Proportional to 2,864.15, 3,953.47 and 1,745.13

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Solution

The fourth proportional to 2,864.15, 3,953.47 and 1,745.13 is: 2,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.15 : 3,953.47 = 1,745.13 : x
  2. Step 2: Convert to fraction form
    2,864.15/3,953.47 = 1,745.13/x
  3. Step 3: Cross multiply
    2,864.15x = 3,953.47 × 1,745.13
  4. Step 4: Simplify right side
    2,864.15x = 6,899,319.10
  5. Step 5: Solve for x
    x = 6,899,319.10/2,864.15
  6. Step 6: Final answer
    x = 2,408.85

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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.