Home / 2,920.98-4,030.40-1,742.16

Finding the Fourth Proportional to 2,920.98, 4,030.40 and 1,742.16

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Solution

The fourth proportional to 2,920.98, 4,030.40 and 1,742.16 is: 2,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.98 : 4,030.40 = 1,742.16 : x
  2. Step 2: Convert to fraction form
    2,920.98/4,030.40 = 1,742.16/x
  3. Step 3: Cross multiply
    2,920.98x = 4,030.40 × 1,742.16
  4. Step 4: Simplify right side
    2,920.98x = 7,021,592.95
  5. Step 5: Solve for x
    x = 7,021,592.95/2,920.98
  6. Step 6: Final answer
    x = 2,403.85

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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.