Home / 1,813.38-2,498.75-1,715.35

Finding the Fourth Proportional to 1,813.38, 2,498.75 and 1,715.35

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Solution

The fourth proportional to 1,813.38, 2,498.75 and 1,715.35 is: 2,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.38 : 2,498.75 = 1,715.35 : x
  2. Step 2: Convert to fraction form
    1,813.38/2,498.75 = 1,715.35/x
  3. Step 3: Cross multiply
    1,813.38x = 2,498.75 × 1,715.35
  4. Step 4: Simplify right side
    1,813.38x = 4,286,230.81
  5. Step 5: Solve for x
    x = 4,286,230.81/1,813.38
  6. Step 6: Final answer
    x = 2,363.67

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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.