Home / 2,219.45-3,312.29-1,973.42

Finding the Fourth Proportional to 2,219.45, 3,312.29 and 1,973.42

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Solution

The fourth proportional to 2,219.45, 3,312.29 and 1,973.42 is: 2,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.45 : 3,312.29 = 1,973.42 : x
  2. Step 2: Convert to fraction form
    2,219.45/3,312.29 = 1,973.42/x
  3. Step 3: Cross multiply
    2,219.45x = 3,312.29 × 1,973.42
  4. Step 4: Simplify right side
    2,219.45x = 6,536,522.77
  5. Step 5: Solve for x
    x = 6,536,522.77/2,219.45
  6. Step 6: Final answer
    x = 2,945.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.