Home / 2,715.39-3,746.32-1,720.53

Finding the Fourth Proportional to 2,715.39, 3,746.32 and 1,720.53

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Solution

The fourth proportional to 2,715.39, 3,746.32 and 1,720.53 is: 2,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.39 : 3,746.32 = 1,720.53 : x
  2. Step 2: Convert to fraction form
    2,715.39/3,746.32 = 1,720.53/x
  3. Step 3: Cross multiply
    2,715.39x = 3,746.32 × 1,720.53
  4. Step 4: Simplify right side
    2,715.39x = 6,445,647.28
  5. Step 5: Solve for x
    x = 6,445,647.28/2,715.39
  6. Step 6: Final answer
    x = 2,373.74

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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.