Home / 7,101.90-10,640.70-4,501.80

Finding the Fourth Proportional to 7,101.90, 10,640.70 and 4,501.80

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Solution

The fourth proportional to 7,101.90, 10,640.70 and 4,501.80 is: 6,745.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.90 : 10,640.70 = 4,501.80 : x
  2. Step 2: Convert to fraction form
    7,101.90/10,640.70 = 4,501.80/x
  3. Step 3: Cross multiply
    7,101.90x = 10,640.70 × 4,501.80
  4. Step 4: Simplify right side
    7,101.90x = 47,902,303.26
  5. Step 5: Solve for x
    x = 47,902,303.26/7,101.90
  6. Step 6: Final answer
    x = 6,745.00

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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.