Home / 2,667.45-3,681.54-1,488.90

Finding the Fourth Proportional to 2,667.45, 3,681.54 and 1,488.90

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Solution

The fourth proportional to 2,667.45, 3,681.54 and 1,488.90 is: 2,054.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,667.45 : 3,681.54 = 1,488.90 : x
  2. Step 2: Convert to fraction form
    2,667.45/3,681.54 = 1,488.90/x
  3. Step 3: Cross multiply
    2,667.45x = 3,681.54 × 1,488.90
  4. Step 4: Simplify right side
    2,667.45x = 5,481,444.91
  5. Step 5: Solve for x
    x = 5,481,444.91/2,667.45
  6. Step 6: Final answer
    x = 2,054.94

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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.