Home / 3,210.50-4,430.03-1,866.06

Finding the Fourth Proportional to 3,210.50, 4,430.03 and 1,866.06

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Solution

The fourth proportional to 3,210.50, 4,430.03 and 1,866.06 is: 2,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.50 : 4,430.03 = 1,866.06 : x
  2. Step 2: Convert to fraction form
    3,210.50/4,430.03 = 1,866.06/x
  3. Step 3: Cross multiply
    3,210.50x = 4,430.03 × 1,866.06
  4. Step 4: Simplify right side
    3,210.50x = 8,266,692.45
  5. Step 5: Solve for x
    x = 8,266,692.45/3,210.50
  6. Step 6: Final answer
    x = 2,574.90

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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.