Home / 4,047.80-6,070.62-1,126.40

Finding the Fourth Proportional to 4,047.80, 6,070.62 and 1,126.40

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Solution

The fourth proportional to 4,047.80, 6,070.62 and 1,126.40 is: 1,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.80 : 6,070.62 = 1,126.40 : x
  2. Step 2: Convert to fraction form
    4,047.80/6,070.62 = 1,126.40/x
  3. Step 3: Cross multiply
    4,047.80x = 6,070.62 × 1,126.40
  4. Step 4: Simplify right side
    4,047.80x = 6,837,946.37
  5. Step 5: Solve for x
    x = 6,837,946.37/4,047.80
  6. Step 6: Final answer
    x = 1,689.30

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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.