Home / 2,153.34-2,971.50-1,313.91

Finding the Fourth Proportional to 2,153.34, 2,971.50 and 1,313.91

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Solution

The fourth proportional to 2,153.34, 2,971.50 and 1,313.91 is: 1,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.34 : 2,971.50 = 1,313.91 : x
  2. Step 2: Convert to fraction form
    2,153.34/2,971.50 = 1,313.91/x
  3. Step 3: Cross multiply
    2,153.34x = 2,971.50 × 1,313.91
  4. Step 4: Simplify right side
    2,153.34x = 3,904,268.71
  5. Step 5: Solve for x
    x = 3,904,268.71/2,153.34
  6. Step 6: Final answer
    x = 1,813.13

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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.