Home / 5,386.02-8,079.14-1,688.17

Finding the Fourth Proportional to 5,386.02, 8,079.14 and 1,688.17

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Solution

The fourth proportional to 5,386.02, 8,079.14 and 1,688.17 is: 2,532.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.02 : 8,079.14 = 1,688.17 : x
  2. Step 2: Convert to fraction form
    5,386.02/8,079.14 = 1,688.17/x
  3. Step 3: Cross multiply
    5,386.02x = 8,079.14 × 1,688.17
  4. Step 4: Simplify right side
    5,386.02x = 13,638,953.33
  5. Step 5: Solve for x
    x = 13,638,953.33/5,386.02
  6. Step 6: Final answer
    x = 2,532.29

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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.