Home / 1,675.84-2,313.86-1,117.63

Finding the Fourth Proportional to 1,675.84, 2,313.86 and 1,117.63

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Solution

The fourth proportional to 1,675.84, 2,313.86 and 1,117.63 is: 1,543.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.84 : 2,313.86 = 1,117.63 : x
  2. Step 2: Convert to fraction form
    1,675.84/2,313.86 = 1,117.63/x
  3. Step 3: Cross multiply
    1,675.84x = 2,313.86 × 1,117.63
  4. Step 4: Simplify right side
    1,675.84x = 2,586,027.78
  5. Step 5: Solve for x
    x = 2,586,027.78/1,675.84
  6. Step 6: Final answer
    x = 1,543.12

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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.