Home / 1,971.81-2,941.85-1,878.93

Finding the Fourth Proportional to 1,971.81, 2,941.85 and 1,878.93

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Solution

The fourth proportional to 1,971.81, 2,941.85 and 1,878.93 is: 2,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.81 : 2,941.85 = 1,878.93 : x
  2. Step 2: Convert to fraction form
    1,971.81/2,941.85 = 1,878.93/x
  3. Step 3: Cross multiply
    1,971.81x = 2,941.85 × 1,878.93
  4. Step 4: Simplify right side
    1,971.81x = 5,527,534.92
  5. Step 5: Solve for x
    x = 5,527,534.92/1,971.81
  6. Step 6: Final answer
    x = 2,803.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.