Home / 1,676.75-2,312.40-1,047.34

Finding the Fourth Proportional to 1,676.75, 2,312.40 and 1,047.34

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Solution

The fourth proportional to 1,676.75, 2,312.40 and 1,047.34 is: 1,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.75 : 2,312.40 = 1,047.34 : x
  2. Step 2: Convert to fraction form
    1,676.75/2,312.40 = 1,047.34/x
  3. Step 3: Cross multiply
    1,676.75x = 2,312.40 × 1,047.34
  4. Step 4: Simplify right side
    1,676.75x = 2,421,863.24
  5. Step 5: Solve for x
    x = 2,421,863.24/1,676.75
  6. Step 6: Final answer
    x = 1,444.38

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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.