Home / 3,210.34-4,430.10-1,813

Finding the Fourth Proportional to 3,210.34, 4,430.10 and 1,813

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Solution

The fourth proportional to 3,210.34, 4,430.10 and 1,813 is: 2,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.34 : 4,430.10 = 1,813 : x
  2. Step 2: Convert to fraction form
    3,210.34/4,430.10 = 1,813/x
  3. Step 3: Cross multiply
    3,210.34x = 4,430.10 × 1,813
  4. Step 4: Simplify right side
    3,210.34x = 8,031,771.30
  5. Step 5: Solve for x
    x = 8,031,771.30/3,210.34
  6. Step 6: Final answer
    x = 2,501.84

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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.