Home / 1,933.85-2,667.98-1,430.90

Finding the Fourth Proportional to 1,933.85, 2,667.98 and 1,430.90

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Solution

The fourth proportional to 1,933.85, 2,667.98 and 1,430.90 is: 1,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.85 : 2,667.98 = 1,430.90 : x
  2. Step 2: Convert to fraction form
    1,933.85/2,667.98 = 1,430.90/x
  3. Step 3: Cross multiply
    1,933.85x = 2,667.98 × 1,430.90
  4. Step 4: Simplify right side
    1,933.85x = 3,817,605.43
  5. Step 5: Solve for x
    x = 3,817,605.43/1,933.85
  6. Step 6: Final answer
    x = 1,974.10

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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.