Home / 1,885.08-2,828.38-653.35

Finding the Fourth Proportional to 1,885.08, 2,828.38 and 653.35

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Solution

The fourth proportional to 1,885.08, 2,828.38 and 653.35 is: 980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.08 : 2,828.38 = 653.35 : x
  2. Step 2: Convert to fraction form
    1,885.08/2,828.38 = 653.35/x
  3. Step 3: Cross multiply
    1,885.08x = 2,828.38 × 653.35
  4. Step 4: Simplify right side
    1,885.08x = 1,847,922.07
  5. Step 5: Solve for x
    x = 1,847,922.07/1,885.08
  6. Step 6: Final answer
    x = 980.29

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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.