Home / 3,210.09-4,430.03-1,812.93

Finding the Fourth Proportional to 3,210.09, 4,430.03 and 1,812.93

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Solution

The fourth proportional to 3,210.09, 4,430.03 and 1,812.93 is: 2,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.09 : 4,430.03 = 1,812.93 : x
  2. Step 2: Convert to fraction form
    3,210.09/4,430.03 = 1,812.93/x
  3. Step 3: Cross multiply
    3,210.09x = 4,430.03 × 1,812.93
  4. Step 4: Simplify right side
    3,210.09x = 8,031,325.22
  5. Step 5: Solve for x
    x = 8,031,325.22/3,210.09
  6. Step 6: Final answer
    x = 2,501.90

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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.