Home / 3,118.72-4,303.35-1,792.17

Finding the Fourth Proportional to 3,118.72, 4,303.35 and 1,792.17

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Solution

The fourth proportional to 3,118.72, 4,303.35 and 1,792.17 is: 2,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.72 : 4,303.35 = 1,792.17 : x
  2. Step 2: Convert to fraction form
    3,118.72/4,303.35 = 1,792.17/x
  3. Step 3: Cross multiply
    3,118.72x = 4,303.35 × 1,792.17
  4. Step 4: Simplify right side
    3,118.72x = 7,712,325.81
  5. Step 5: Solve for x
    x = 7,712,325.81/3,118.72
  6. Step 6: Final answer
    x = 2,472.91

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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.