Home / 1,056.24-1,457.36-608.16

Finding the Fourth Proportional to 1,056.24, 1,457.36 and 608.16

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Solution

The fourth proportional to 1,056.24, 1,457.36 and 608.16 is: 839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.24 : 1,457.36 = 608.16 : x
  2. Step 2: Convert to fraction form
    1,056.24/1,457.36 = 608.16/x
  3. Step 3: Cross multiply
    1,056.24x = 1,457.36 × 608.16
  4. Step 4: Simplify right side
    1,056.24x = 886,308.06
  5. Step 5: Solve for x
    x = 886,308.06/1,056.24
  6. Step 6: Final answer
    x = 839.12

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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.