Home / 2,690.63-3,714.59-1,747.26

Finding the Fourth Proportional to 2,690.63, 3,714.59 and 1,747.26

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Solution

The fourth proportional to 2,690.63, 3,714.59 and 1,747.26 is: 2,412.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.63 : 3,714.59 = 1,747.26 : x
  2. Step 2: Convert to fraction form
    2,690.63/3,714.59 = 1,747.26/x
  3. Step 3: Cross multiply
    2,690.63x = 3,714.59 × 1,747.26
  4. Step 4: Simplify right side
    2,690.63x = 6,490,345.79
  5. Step 5: Solve for x
    x = 6,490,345.79/2,690.63
  6. Step 6: Final answer
    x = 2,412.21

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1.5x scale

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.