Home / 1,720.07-2,373.73-974.01

Finding the Fourth Proportional to 1,720.07, 2,373.73 and 974.01

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Solution

The fourth proportional to 1,720.07, 2,373.73 and 974.01 is: 1,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.07 : 2,373.73 = 974.01 : x
  2. Step 2: Convert to fraction form
    1,720.07/2,373.73 = 974.01/x
  3. Step 3: Cross multiply
    1,720.07x = 2,373.73 × 974.01
  4. Step 4: Simplify right side
    1,720.07x = 2,312,031.89
  5. Step 5: Solve for x
    x = 2,312,031.89/1,720.07
  6. Step 6: Final answer
    x = 1,344.15

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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.