Home / 4,725.36-7,088.34-1,438.68

Finding the Fourth Proportional to 4,725.36, 7,088.34 and 1,438.68

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Solution

The fourth proportional to 4,725.36, 7,088.34 and 1,438.68 is: 2,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.36 : 7,088.34 = 1,438.68 : x
  2. Step 2: Convert to fraction form
    4,725.36/7,088.34 = 1,438.68/x
  3. Step 3: Cross multiply
    4,725.36x = 7,088.34 × 1,438.68
  4. Step 4: Simplify right side
    4,725.36x = 10,197,852.99
  5. Step 5: Solve for x
    x = 10,197,852.99/4,725.36
  6. Step 6: Final answer
    x = 2,158.11

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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.