Home / 3,555.02-4,910.54-2,885.30

Finding the Fourth Proportional to 3,555.02, 4,910.54 and 2,885.30

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Solution

The fourth proportional to 3,555.02, 4,910.54 and 2,885.30 is: 3,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.02 : 4,910.54 = 2,885.30 : x
  2. Step 2: Convert to fraction form
    3,555.02/4,910.54 = 2,885.30/x
  3. Step 3: Cross multiply
    3,555.02x = 4,910.54 × 2,885.30
  4. Step 4: Simplify right side
    3,555.02x = 14,168,381.06
  5. Step 5: Solve for x
    x = 14,168,381.06/3,555.02
  6. Step 6: Final answer
    x = 3,985.46

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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.