Home / 1,719.20-2,352-1,714.32

Finding the Fourth Proportional to 1,719.20, 2,352 and 1,714.32

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Solution

The fourth proportional to 1,719.20, 2,352 and 1,714.32 is: 2,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.20 : 2,352 = 1,714.32 : x
  2. Step 2: Convert to fraction form
    1,719.20/2,352 = 1,714.32/x
  3. Step 3: Cross multiply
    1,719.20x = 2,352 × 1,714.32
  4. Step 4: Simplify right side
    1,719.20x = 4,032,080.64
  5. Step 5: Solve for x
    x = 4,032,080.64/1,719.20
  6. Step 6: Final answer
    x = 2,345.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.