Home / 1,970.16-2,717.64-1,677.12

Finding the Fourth Proportional to 1,970.16, 2,717.64 and 1,677.12

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Solution

The fourth proportional to 1,970.16, 2,717.64 and 1,677.12 is: 2,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.16 : 2,717.64 = 1,677.12 : x
  2. Step 2: Convert to fraction form
    1,970.16/2,717.64 = 1,677.12/x
  3. Step 3: Cross multiply
    1,970.16x = 2,717.64 × 1,677.12
  4. Step 4: Simplify right side
    1,970.16x = 4,557,808.40
  5. Step 5: Solve for x
    x = 4,557,808.40/1,970.16
  6. Step 6: Final answer
    x = 2,313.42

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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.