Home / 7,015.40-10,521.58-2,085.08

Finding the Fourth Proportional to 7,015.40, 10,521.58 and 2,085.08

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Solution

The fourth proportional to 7,015.40, 10,521.58 and 2,085.08 is: 3,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.40 : 10,521.58 = 2,085.08 : x
  2. Step 2: Convert to fraction form
    7,015.40/10,521.58 = 2,085.08/x
  3. Step 3: Cross multiply
    7,015.40x = 10,521.58 × 2,085.08
  4. Step 4: Simplify right side
    7,015.40x = 21,938,336.03
  5. Step 5: Solve for x
    x = 21,938,336.03/7,015.40
  6. Step 6: Final answer
    x = 3,127.17

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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.