Home / 2,118.93-2,923.13-1,373.13

Finding the Fourth Proportional to 2,118.93, 2,923.13 and 1,373.13

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Solution

The fourth proportional to 2,118.93, 2,923.13 and 1,373.13 is: 1,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.93 : 2,923.13 = 1,373.13 : x
  2. Step 2: Convert to fraction form
    2,118.93/2,923.13 = 1,373.13/x
  3. Step 3: Cross multiply
    2,118.93x = 2,923.13 × 1,373.13
  4. Step 4: Simplify right side
    2,118.93x = 4,013,830.63
  5. Step 5: Solve for x
    x = 4,013,830.63/2,118.93
  6. Step 6: Final answer
    x = 1,894.27

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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.