Home / 4,689.23-7,031.57-1,914.80

Finding the Fourth Proportional to 4,689.23, 7,031.57 and 1,914.80

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Solution

The fourth proportional to 4,689.23, 7,031.57 and 1,914.80 is: 2,871.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.23 : 7,031.57 = 1,914.80 : x
  2. Step 2: Convert to fraction form
    4,689.23/7,031.57 = 1,914.80/x
  3. Step 3: Cross multiply
    4,689.23x = 7,031.57 × 1,914.80
  4. Step 4: Simplify right side
    4,689.23x = 13,464,005.50
  5. Step 5: Solve for x
    x = 13,464,005.50/4,689.23
  6. Step 6: Final answer
    x = 2,871.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.