Home / 2,851.34-4,276.95-1,689.32

Finding the Fourth Proportional to 2,851.34, 4,276.95 and 1,689.32

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Solution

The fourth proportional to 2,851.34, 4,276.95 and 1,689.32 is: 2,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.34 : 4,276.95 = 1,689.32 : x
  2. Step 2: Convert to fraction form
    2,851.34/4,276.95 = 1,689.32/x
  3. Step 3: Cross multiply
    2,851.34x = 4,276.95 × 1,689.32
  4. Step 4: Simplify right side
    2,851.34x = 7,225,115.79
  5. Step 5: Solve for x
    x = 7,225,115.79/2,851.34
  6. Step 6: Final answer
    x = 2,533.94

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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.