Home / 1,895.40-2,859.30-1,798.20

Finding the Fourth Proportional to 1,895.40, 2,859.30 and 1,798.20

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Solution

The fourth proportional to 1,895.40, 2,859.30 and 1,798.20 is: 2,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.40 : 2,859.30 = 1,798.20 : x
  2. Step 2: Convert to fraction form
    1,895.40/2,859.30 = 1,798.20/x
  3. Step 3: Cross multiply
    1,895.40x = 2,859.30 × 1,798.20
  4. Step 4: Simplify right side
    1,895.40x = 5,141,593.26
  5. Step 5: Solve for x
    x = 5,141,593.26/1,895.40
  6. Step 6: Final answer
    x = 2,712.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.