Home / 2,191.90-3,024.58-1,307.53

Finding the Fourth Proportional to 2,191.90, 3,024.58 and 1,307.53

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Solution

The fourth proportional to 2,191.90, 3,024.58 and 1,307.53 is: 1,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.90 : 3,024.58 = 1,307.53 : x
  2. Step 2: Convert to fraction form
    2,191.90/3,024.58 = 1,307.53/x
  3. Step 3: Cross multiply
    2,191.90x = 3,024.58 × 1,307.53
  4. Step 4: Simplify right side
    2,191.90x = 3,954,729.09
  5. Step 5: Solve for x
    x = 3,954,729.09/2,191.90
  6. Step 6: Final answer
    x = 1,804.25

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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.