Home / 2,316.79-3,476.40-1,820.17

Finding the Fourth Proportional to 2,316.79, 3,476.40 and 1,820.17

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Solution

The fourth proportional to 2,316.79, 3,476.40 and 1,820.17 is: 2,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.79 : 3,476.40 = 1,820.17 : x
  2. Step 2: Convert to fraction form
    2,316.79/3,476.40 = 1,820.17/x
  3. Step 3: Cross multiply
    2,316.79x = 3,476.40 × 1,820.17
  4. Step 4: Simplify right side
    2,316.79x = 6,327,638.99
  5. Step 5: Solve for x
    x = 6,327,638.99/2,316.79
  6. Step 6: Final answer
    x = 2,731.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.