Home / 2,215.10-3,328.74-2,070.63

Finding the Fourth Proportional to 2,215.10, 3,328.74 and 2,070.63

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Solution

The fourth proportional to 2,215.10, 3,328.74 and 2,070.63 is: 3,111.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.10 : 3,328.74 = 2,070.63 : x
  2. Step 2: Convert to fraction form
    2,215.10/3,328.74 = 2,070.63/x
  3. Step 3: Cross multiply
    2,215.10x = 3,328.74 × 2,070.63
  4. Step 4: Simplify right side
    2,215.10x = 6,892,588.91
  5. Step 5: Solve for x
    x = 6,892,588.91/2,215.10
  6. Step 6: Final answer
    x = 3,111.63

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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.