Home / 1,056.20-1,457.63-608.22

Finding the Fourth Proportional to 1,056.20, 1,457.63 and 608.22

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Solution

The fourth proportional to 1,056.20, 1,457.63 and 608.22 is: 839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.20 : 1,457.63 = 608.22 : x
  2. Step 2: Convert to fraction form
    1,056.20/1,457.63 = 608.22/x
  3. Step 3: Cross multiply
    1,056.20x = 1,457.63 × 608.22
  4. Step 4: Simplify right side
    1,056.20x = 886,556.68
  5. Step 5: Solve for x
    x = 886,556.68/1,056.20
  6. Step 6: Final answer
    x = 839.38

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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.