Home / 2,038.63-2,813.31-1,107.13

Finding the Fourth Proportional to 2,038.63, 2,813.31 and 1,107.13

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Solution

The fourth proportional to 2,038.63, 2,813.31 and 1,107.13 is: 1,527.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.63 : 2,813.31 = 1,107.13 : x
  2. Step 2: Convert to fraction form
    2,038.63/2,813.31 = 1,107.13/x
  3. Step 3: Cross multiply
    2,038.63x = 2,813.31 × 1,107.13
  4. Step 4: Simplify right side
    2,038.63x = 3,114,699.90
  5. Step 5: Solve for x
    x = 3,114,699.90/2,038.63
  6. Step 6: Final answer
    x = 1,527.84

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1.5x scale

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.