Home / 2,152.23-2,969.84-1,207.83

Finding the Fourth Proportional to 2,152.23, 2,969.84 and 1,207.83

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Solution

The fourth proportional to 2,152.23, 2,969.84 and 1,207.83 is: 1,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.23 : 2,969.84 = 1,207.83 : x
  2. Step 2: Convert to fraction form
    2,152.23/2,969.84 = 1,207.83/x
  3. Step 3: Cross multiply
    2,152.23x = 2,969.84 × 1,207.83
  4. Step 4: Simplify right side
    2,152.23x = 3,587,055.81
  5. Step 5: Solve for x
    x = 3,587,055.81/2,152.23
  6. Step 6: Final answer
    x = 1,666.67

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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.