Home / 1,973.58-2,715.15-1,918.90

Finding the Fourth Proportional to 1,973.58, 2,715.15 and 1,918.90

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Solution

The fourth proportional to 1,973.58, 2,715.15 and 1,918.90 is: 2,639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.58 : 2,715.15 = 1,918.90 : x
  2. Step 2: Convert to fraction form
    1,973.58/2,715.15 = 1,918.90/x
  3. Step 3: Cross multiply
    1,973.58x = 2,715.15 × 1,918.90
  4. Step 4: Simplify right side
    1,973.58x = 5,210,101.34
  5. Step 5: Solve for x
    x = 5,210,101.34/1,973.58
  6. Step 6: Final answer
    x = 2,639.93

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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.