Home / 5,611.28-8,412.60-2,688.08

Finding the Fourth Proportional to 5,611.28, 8,412.60 and 2,688.08

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Solution

The fourth proportional to 5,611.28, 8,412.60 and 2,688.08 is: 4,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.28 : 8,412.60 = 2,688.08 : x
  2. Step 2: Convert to fraction form
    5,611.28/8,412.60 = 2,688.08/x
  3. Step 3: Cross multiply
    5,611.28x = 8,412.60 × 2,688.08
  4. Step 4: Simplify right side
    5,611.28x = 22,613,741.81
  5. Step 5: Solve for x
    x = 22,613,741.81/5,611.28
  6. Step 6: Final answer
    x = 4,030.05

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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.