Home / 1,973.08-2,714.46-1,918.40

Finding the Fourth Proportional to 1,973.08, 2,714.46 and 1,918.40

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Solution

The fourth proportional to 1,973.08, 2,714.46 and 1,918.40 is: 2,639.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.08 : 2,714.46 = 1,918.40 : x
  2. Step 2: Convert to fraction form
    1,973.08/2,714.46 = 1,918.40/x
  3. Step 3: Cross multiply
    1,973.08x = 2,714.46 × 1,918.40
  4. Step 4: Simplify right side
    1,973.08x = 5,207,420.06
  5. Step 5: Solve for x
    x = 5,207,420.06/1,973.08
  6. Step 6: Final answer
    x = 2,639.24

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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.