Home / 2,875.78-4,313.70-2,302.30

Finding the Fourth Proportional to 2,875.78, 4,313.70 and 2,302.30

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Solution

The fourth proportional to 2,875.78, 4,313.70 and 2,302.30 is: 3,453.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.78 : 4,313.70 = 2,302.30 : x
  2. Step 2: Convert to fraction form
    2,875.78/4,313.70 = 2,302.30/x
  3. Step 3: Cross multiply
    2,875.78x = 4,313.70 × 2,302.30
  4. Step 4: Simplify right side
    2,875.78x = 9,931,431.51
  5. Step 5: Solve for x
    x = 9,931,431.51/2,875.78
  6. Step 6: Final answer
    x = 3,453.47

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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.