Home / 2,430.09-3,353.55-1,381.95

Finding the Fourth Proportional to 2,430.09, 3,353.55 and 1,381.95

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Solution

The fourth proportional to 2,430.09, 3,353.55 and 1,381.95 is: 1,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.09 : 3,353.55 = 1,381.95 : x
  2. Step 2: Convert to fraction form
    2,430.09/3,353.55 = 1,381.95/x
  3. Step 3: Cross multiply
    2,430.09x = 3,353.55 × 1,381.95
  4. Step 4: Simplify right side
    2,430.09x = 4,634,438.42
  5. Step 5: Solve for x
    x = 4,634,438.42/2,430.09
  6. Step 6: Final answer
    x = 1,907.11

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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.